Automatic lighter for gas stoves



Jan, 19, 1932, J. l.. BRIGHT AUTOMATIC LIGHTER FOR GAS STOVES FiledMarch 6, 1951 2 Sheets-Sheet 1 Mmmm"filfulnfnmfllm aan. i9, 1.932. JBR|GHT 1,841,399

AUTOMATIC LIGHTER FOR GAS STOVES Filed March 6. 1931 2 Sheets-Sheet 2@43M W Q-/f Patented Jan. ie, 1932 UNITEDy STATES PATENT OFFICE JESSE L.BRIGHT, OF. GICERO, ILLINOIS., ASSIGNOR TO CROWNfSTOVE WORKS, OF CIGERO,illflldl'aINOIs, A. CORPORATION OF ILLINOIS AUTOMATIC LIGHTER FOROASSTOVES Application led latch 8,- 1931. Serial 170.520,574.

This invention relates -to automatic lighters used in connection withgas stoves.

Gas stoves usually include a series of burners having mixing tubesextending forwardly to a manifold located in the front part of thestove. The burners are controlled y the usual hand-operated valvesconnected o the manifold. For manyyears, pilot light burners have beenused in4 gas stoves for igniting the gas but such pilot lights werecontrolled by a separate valve and, in order to ignite the gas at anyburner, it was necessary to open the burner valve and also the pilotlight valve. The pilot light normally burned with a low flame and,upon`the opening of its valve, the pilot flame was flashed, that is, itwas projected outwardly toward the burners.

With such prior constructions, if the ame at any burner wasextinguished, the gas could not be re-ignited without again opening thepilot valve. Such constructions are objectionable because frequentlyburner flames are accidently extinguished by boiling liquids runningover the sides of cooking utensils and the escaping gas is not alwaysdetected immediately. It is, therefore, desirable t0 have means forautomatically igniting any gas escaping from any one of the burners.

It is also well known that gas valves are very attractive to childrenoftender years who are sometimes actuated by inquisitiveness rather thanjudgment. In such cases, serious accidents maybe averted by theautomatic lighting of the gas as soon as any one of the burner valves isopened.

The main objects of this invention are to provide a gas stove havingmeans for automatically igniting the gas immediately upon the opening of'any one ofthe burner valves; to provide an automatic lighter whichautomatically re-ignites the burner flame after it has been accidentallyextinguished; to provide an automatic lighter having an improved form ofpilot; and to provide improved conductor means for conducting to thepilot gas issuing from the burners, whereby the gas may beautomaticallyignited without flashing the pilot iame.

Anillustrative embodiment of this invenplan of a automatic Fig. 5 is afragmentary bottom plan of the pilotand conductor.

Automatic lighters embodying this invention may be used on gas stoves ofmany different types and, therefore, the enclosed drawings illustrateonly those portions of a stove which will be helpful in apprehending theinvention.

In the form shown, the stove includes a burner top comprising a castmetal frame 1 having a rim 2 for supportingthe usual removable grates 3.y Extending along one end of the stove, is a supplyl pipe 4 connected toa gas-.manifold 5, which is located below the forward end of the frame1'. Suspended fromY 'the manifold 5, are the customary valves 6" havinghandles 7 and rearwardly projecting nozzles 8. Supported onthe frame 1,is a lpair of horizontal rods 9, which support a pair of rear burners'10, a pair of front burners 11 and a simmer burner 12 having mixingtubes 13, 14, and 15, respectively, eX- tending forwardly to the valvenozzles 8.

The improved automatic lighting means 4herein shown includes a pilottube 16 having its forward end communicating with the manifold 5 andhaving a closed rear end supported in a bracket 17 secured to theframe 1. Formed in the pilot tube 16, is a pair of transversely disposedslits 18 providing the gas outlets for the pilot flames. One of theseslits is located betweenthe two rear burners' and the other slit .islocated between the front burners. A set screw 19 at the forward end ofthe pilot tube is adapted to control the amount of gas entering the tubefor regulating the size of the pilot flames but the valve heretoforeprovided for flashing the pilot has is ignited within the .been omitted.The two pilot' lights, when once adjusted, are intended to burn withuniform ilames without any Hashing, because the amount of gas passingthrough the lpilot tube is not increased when the burners areautomatically ignited. t

Disposed, directly above the pilot tube, is a plate 20 having its rearend supported on the bracket 17 and its front end supported on a bracket21 secured to the frame 1 Bolts 22 may be used for detachably securingthe plate 20 to the brackets.

The plate 20 is preferably a metal casting. Integrally formed onthe'plate 20, is a pair of depending hoods 23 located directly above theslits 18 to form chambers for the pilot iames. The lower edges of thehoods 23 are recessed, as shown at 24, so as to receive the pilot tube.Integrally formed on each of the hoods 23, is a pair of laterallyextending arms of inverted V-shaped cross section which provide channels25 for conducting to the pilot hoods 23 gas issuing from the burners.The u per wall of each hood is tapered downwaxiilly to form a conicaldeflector 26. Formed in the side walls of the hoods adj acent the upperends thereof, are draft openings 27 so as to permit the freepassage ofgas from the burners to the pilot lights.

Formed in the upper wall of the mixing tube 15. is an aperture 28 whichis located directly below one of the channels 125 and through which gaspasses to the front pilot light for igniting the simmer burner. In therear wall of the channel 25, which is located directly above the mixingtube 15, is an opening 29 through which the' Hame passes outwardly fromthe channel for igniting the simmer burner;

Formed oneach of the main burners `1O and 11, is a boss 30 having-acentral aperture 31 located adjacent the outer end of the adiacentchannel25. The upper end of each? boss 30 is tapered as shown at 32 sothat any liquid dropping onto the boss will be drained" away from thecentral aperture. Y In operation, the gas issuing from the pilot slits18 is ignited so as to provide two pilot lights which burn continuouslywith a low uniform flame within the two hoods 23. To ignite the gasatany one of the main burners, the corresponding valve 6 is opened. Whenthe burner valve is opened, some of the gas passes through the outlet 31and is conducted by one of the channels 25 tothe pilot flame within oneof the hoods 23. When the gas hood 23, the flame passes outwardly alongthe channel 25 and ignites the gas issuing from the top of the openburner. As soon as the` gas is ignited at the burner, it ceases to flowthrough the channel 25.

To light the simmer burner, its valve is l opened and some ofthe gasentering the mixing chamber-15 passes through the outlet 28 and isconductedto the front pilot light by the channel 25 located above thetube 15. y When the gas is -ignited by the front pilot, the flametravels outwardly through the channel and passes rearwardly through theopening 29 for igniting the gas issuing from the simmer burner.

. With this-improved construction, the lighting is entirely automaticupon the opening of any one of the burner valves. Moreover, if the flameat any burner is accidentally extinguished, as for instance by liquidsfrom the cooking utensils, the gas issuing from such burner will beautomatically and immediately re-ignited.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that'certain details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

I claim:

1. `A stove comprising a gas burner, a pilot, a hood surmountingsaidpilot, and means providing a channel for conducting to said hood gasissuing from said-burner, said hood having a top wall tapered downwardlytoward said pilot to provide a deflector.

2. A stove comprising a gas burner, a pilot, a hood surmounting saidpilot, and means providing a. channel for conducting to said hood gasissuing from said burner, said hood having draft passages formed thereinand having a top 'wall tapered downwardly toward said pilot to provide aconical detlector.

' 3. A stove comprising a pilot, a pair 'of gas burners, one of saidburners having a fuel mixingA tube located between said pilot and theother burner, said tube .having an aperture therein, and means providinga channel `for conducting to said pilot gas issuing from said apertureand said other burner.

4. A stove comprising a pilot, a pair of gas burners, one o'f saidburners having a fuel mixing tube located between said pilot and theother burner` said tube havingan aperture therein, and means providing achannel disposed above said mixing tube for conducting to said pilot gasissuingfrom said aperture and said other burner.

5. A stove comprising a main gas burner, a pilot, a simmerfburner havinga mixing tube located between said main burner and'said pilot, said tubehaving an aperture therein, and a channel located above said mixing tubeand extending between said pilot and said main burner for conductingtosaid pilot gas .issuing from said aperture and said main burner.

6. A gas stove comprising a pilot, a pair lad pilot and one of said mainburners, said tube having .an-aperture therein, and means providing apair of channels for conducting to said pilot gas issuing from said mainburners 5 and from said a erture.

Signed at Chlcago this 4th day of March,

I JESSE L. BRIGHT.

